Metallic door.



En, i,

EUDIP, 'UE PvLADELPl-H. PIENEISYLVANIA, ASSIG-NOR, BY MESNE AS- S, 'TU HiLE AND ILBRN CMPIV'SE', OF PHILADELPHIA, PENNSY'" Specification of Letters ietent.

Patented Jan. i3, il

Application filed June 23, 15.9053. Serial No. 439,994.

To all whom it may eonceiu;

Be it known that, I, EDWARD ti. Bonn, e eitizen of the United States, and a resident of Philadelphie, in the county of Philadel ohio and State of lilennsylvania, have invented. ay certain new and ueefulv Improveinent .in lilletalhe Doors, (Case A7,) oi; Wnieh the fiiilowing 1e ay specification.

"' l* tll"l lhis invention re aus to me a 1e (.ooie

and is directed to the provision o't a door onf improved construction by which great strength and stiffness are secured and such that the door may be manufactured at eoin peratively low oost.

in the `preleiifreci embodiment of the invention, a double doorl its provided, the two members ot which provided with over lapn' `portionej et the adjacent; edgee ther-i n: for tjiositioi'iing the doors when elo/sed and to better 'preclude the entrance of air between the doors.

The inventioi'i ie ot. nietellie door@ tot' the taille ruiiwajwears.

in ooeordanee with the invention, each of the double doors hai@ its Sides and one eelge torniod from a si: e pieee ol sheet-metal, pi'eterahly steel, thi. sheet heini); lient along,- paraliel line` to forni the eide and edge poi`- tions and to provide in thi` edge the overlapping;` portion. This edge, portion, inter` gral with the :sides ot the door, closes one irtfionlzir utility in s den o1' endif. of ineedgre of the door, and at the other edges the snare between the sides is elosed hy one or more Strips oi' sheet-metal, these strips hai'g in L' their lateral edgeehent. to provide tlangfesa which lie. against, the adjaeent faces ot the `idee et' the door. rlhese. flanges are Seeured lo the sidee ofthe door in an)Y suitable inanner. as h v welding; or riveting, The door is Vproijided with a Window of any suitable Iehape, prete ably not arranged to open and close. For this purpose, each of the sides of the door hns an opening eut therein, eorreriponding in shape to the shape desired for the window, and a freine ot novel construetion is seeured Within the openingI thus provided.

i have illustrated the preferred e1nl odinient of my invention in the eeronipanying 'irN in which* and Fig. 4- is e sectional detail View illus` trating a inoditiontion.

Referring to these drawings, Fig'. 1 Sl'iows the double doors in the closed position, over lapping at their :idjeeent edges. Rech ol theee doors has its side walls and one edge wall formed from e single pieee el.Y sheetnietal. This sheet, when eut to the proper shape, is bent on parallel lines toprovide the side walls 1 and@ end the edge Wall 3, end the material for this edge wall is Sinai.- arly leent on parallel lines to providel the overlapping portion 4. ,is `will he eeen, the edge Wall Il closes one edge of the door; et the other' three edges, the spitse between the eide walls l and is elosed 'by one or more stripe 5 of sheetanetul. it' a single strip 5 is need At'or this purpose, this is bent as refniired at the, ends of the Side edge of the door; if two or more strips are employed insstead oi ay single Strip, theee are preferably united :it their envie, as by welding" or rivet,- ingf them together. The strip 5, or nach of the strips it" .more than one are need, is flanged at its lateral edges, as Shown at.. (i, to provide dungen whieh lie against the ad itieent 'faeefs ot' the side wells l and 2. These tia' #es are sewn-Qd to the side walls in :in v suitable manner, as by welding' or riveting. 'lhe strips 5, with the flanges thereon, stillen the door Very materially, sind it desired for thisnmrpose the tlangee may be nitide of greater width than they are shownin the drawings. leo, the Strips; Ti forni a good 'supporting menne for the, hingen 7 hy which the door is mounted in position.

The donlole doors shown in Figo. l, '2 und 3 are arranged to he mounted upon hinges, hut il desired the doorsl may hi arranged to lelide toward and away from eaeh other. it this mounting ot the doors is employed, prefer to form the overlapping" portions of the two doors as shown in Fig. 4 rather than as Shown in Figs. 2 and so that when the adjaeent edges come together a slight wedging,r aetion will tak@v ilaee, whieh'will insure a goed closure of the doors. A window is iuforided in each ol.r they doors, but thi,` is not arranged to open and elose. For this purpoee each of the side italie l and Q has an ont-innig; out. therein, eorreL-nondine)` in Shape l 're/i 'l'or .ndoiig the I somewhat ,135er than that in the @they Side wal-ll. 2. wrrespmitlnig 1n size and Snape e -Y is nmnntecl within the opening' "oy supporting n panel, 'for instance.

of 3. The frame S may hen.

it muy he formed from sheetli'ml. At one of its edges, it is letl with :in mV-.Yitiully' extending;` i l() alnptetl te o\ erle the mutex' face the silhl et the edge et the-opening theietlnfough lt the. other edge et the vmi'fllf extending' flange Yll iileptefl to lie :1fi3:u ='1t te the inner liefe of the Side 'E it the edge et the opening thereilnnngh Between th enh the pinze ot i). i if.) is secured in the wall `l h V imams @if serene 'u' i'ivete i3. Fmr securing the flange il ze the well :t seenring Sti-ip i4- ie gn'mitlefl, shaped to cinrespeml to the Shane of the Opening' in'ilie all 2, :mtl

srivw 0i' iifets l5 pass through openintfe tn the will 2 unil ille ,flange il,

tu Hain-U strip liantl flange il m the eide wall f. rThe pene mi gh,

n .t e? sott imite-vial. :is papel: felt m' rfnibe', inwind itl edge. intl n held in 'peei- Leeee? vision of the overlapping portions ,on the edges ot' the doors. This overlappmg p0r- 'uen im each door 1s formed in the edge thereo'l which is integral with the Side- Walls, these three parte being formeel from 1 a ysingle piece of sheet-metal byveutting the .seme to the proper shape and bending it along parallel. lines. This method of constiucting the door reduces the Cost of manufacture materially and produces adem' which is quite sti-Ong' und still'.

H 4ving now described inv inve1it-ion,wlmt l elniin as new therein and desire te secure hy Letters Patent is as follows metallic floor having the sides tl'ieiefrt nimgle (it eheemetnl and spaced apart from eznh other, each of Said sides having :1n wpening therein nnclone oit snitl openings l'ieng larger' than the otherr` a Window- 't'gime cin-responding in shape to said open ings. means for securing one etlge nf Said frame to the outer face of the side et the .fleur lim-ing the langer Upemng the'eni, e securing strip lying againet the enter tace of the other side of the door and exteinling :iheut the opening tlieen, and set-tiring Cle- \i -es passing through said strip :incl the atl.- jnient Side of the door and engaging the erige et Suid trame to secure the fume to Suhl eine if the door, Said frame having a wir ll disposed in the plane of the door between suifl sides t() position a pane of glass, :intl a retaining strlp Set-meti te the frame nml holding Suid' ,eines in @esiti-en, suiestnntiaily as Het forth.

This: speeiifation Sigi-teal :intl witnessed this l'th lay et" J1.ine.`,l$,"08..

EDWARD e. BU'DD.

lWitnesses t ll. M. Finns, B. J. TUCKER. 

